Surname Aoro (Aoro 
) , across the world, is a rare cognomen. The family name Aoro is habitual in Kenya, where it is a rare surname, Tanzania, where it is a very rare surname, and Canada, where it is an extremely rare surname. Measured by absolute frequency, it is the most numerous in Kenya, Tanzania, and the United States. Much less frequently, Aoro is the forename as well as the last name.